SISE Network Access Device Administration Practice Question
When troubleshooting TACACS+ authentication issues in Cisco ISE, which log file should you monitor to see the specific request details and the policy match result?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
TACACS+ Livelogs
The TACACS+ Livelogs provide the most granular view of the request, policy matching, and the selected results.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
System Summary Dashboard
Why it's wrong here
The dashboard provides high-level health, not transaction details.
- ✗
Endpoint Context Visibility
Why it's wrong here
This is for profiling endpoints, not device admin auth.
- ✓
TACACS+ Livelogs
Why this is correct
This is the primary operational log for TACACS+.
- ✗
RADIUS Livelogs
Why it's wrong here
RADIUS logs do not contain TACACS+ transactions.
Quick reference
AAA Protocol Comparison
| Protocol | Port(s) | Encryption | Transport | Primary Use |
|---|---|---|---|---|
| RADIUS | 1812 / 1813 | Password only | UDP | Network access control |
| TACACS+ | 49 | Full packet | TCP | Device administration |
| Diameter | 3868 | Full session | TCP / SCTP | Carrier / mobile networks |
| 802.1X | — | EAP-based | Layer 2 | Port-based access control |
TACACS+ encrypts the entire packet; RADIUS only encrypts the password field — a key exam distinction.
About these practice questions
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JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed August 2026 · checked against the official Cisco exam blueprint
This SISE practice question is part of Courseiva's free Cisco certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the SISE exam.